-- @testpoint: opengauss关键字connection_name(非保留)，作为函数名，部分测试点合理报错

--关键字不带引号-成功
drop function if exists connection_name;
create function connection_name(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function if exists connection_name;
--关键字带双引号-成功
drop function if exists "connection_name";
create function "connection_name"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function if exists "connection_name";
--关键字带单引号-合理报错
drop function if exists 'connection_name';
create function 'connection_name'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带反引号-合理报错
drop function if exists `connection_name`;
create function `connection_name`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/